It is important not to defeat or tamper with the safety interlocks. (b) Do not place any object between the oven front face and the door or allow soil or cleaner residue to accumulate on sealing surfaces. (c) Do not operate the oven if it is damaged. It is particularly important that the oven door close properly and that there is no damage to the: (1) door (bent), (2) hinges and latches (broken or loosened), (3) door seals and sealing surfaces. (d) The oven should not be adjusted or repaired